MQ 135 Air Quality Sensor Hazardous Gas Detector Module


Last Sold  64 sold in last 14 hours

✅ Top Quality Products and Low-Risk Purchased
Find the right products to sell online from thousands of quality products sourced from trusted China suppliers. and start selling them instantly, without stockpiling inventory. Electronics, fashion, beauty, phones, or accessories.
✅ Trackable Delivery
Parcel shipped via ePacket, China Post, AliExpress Shipping, or UPS/DHL/FedEx.
✅ Get your brand logo printed on order packages
Put your brand logo stickers on order packages shipped from China. Just talk to our support team to get your logo on order boxes.
✅ 24/7 Support
We’re here to help! Our support team is available 24/7 and dedicated to helping grow your brand fast.

   Bulk Savings (Buy more save more)
  • MQ 135 Air Quality Sensor Hazardous Gas Detector Module

    MQ 135 Air Quality Sensor Hazardous Gas Detector Module


    Request a Call Back

    •  Delivery & Return


      1. We ship your order worldwide.
      2. All orders are shipped with a tracking number.
      3. Orders are processed and prepared to be shipped within 2-5 business days. Including quality checks, packing, paperwork, etc. Delivery times may take 3-14 (business days) from the time of purchase to shipping your order worldwide unless it is specified.
      3-5 business days delivery time for Expedite shipping(DHL/FedEx/UPS etc)
      7-14 business days delivery time for Standard Shipping(EMS/YunExpress etc)
      Please note that there will be substantial differences in the time of delivery, depending on your country of delivery. During sale periods and promotions the delivery time may be longer than normal.


      1. For whatever reason, if you are not satisfied with your received within 3 days and the product is still in brand new condition and with its original packaging, you can return it to us (need to send back all parts) for a partial refund, which will cover the price of the item minus the shipping fees. You will be responsible for paying the return shipping fees.
      2. To start a return, you can contact us. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
      3. Your return will usually be processed within a week to a week and a half. We’ll send you a Return Notification email to notify you once the return has been completed. Please allow 1-3 business days for refunds to be received to the original form of payment once the return has been processed.


      Give us a shout if you have any other questions and/or concerns.
      Phone: (+01)-662-300-6268

    •  Ask a Question
      MQ 135 Air Quality Sensor Hazardous Gas Detector Module

      MQ 135 Air Quality Sensor Hazardous Gas Detector Module


      Ask a Question

        Estimated Delivery: Sep 25 – Sep 28
        ... people are viewing this right now
      Guaranteed Safe CheckoutTrust


      MQ-135 gas sensor sensitive material used in clean air, low conductivity tin oxide (SnO2). When present in the environment pollution gas sensor, conductivity sensor with the increase in air pollution in the gas concentration increases. Using a simple circuit can convert the change in conductivity of the gas concentration corresponding to the output signal.
      MQ135 ammonia gas sensor, sulfide, benzene vapor high sensitivity, smoke, and other harmful monitoring will also be ideal. The sensor can detect a variety of harmful gases, it is a low-cost sensor for a variety of applications.
      Can be used for home and factory gas leakage monitoring devices, suitable for liquefied petroleum gas, butane, propane, methane, smoke, etc.


      Model: MQ-135
      Product Type: Semiconductor Gas Sensor
      Detection gas: ammonia, sulfide, benzene vapor
      Detection concentration: 10-1000ppm (ammonia, toluene, hydrogen)
      Loop voltage (Vc): le24V DC
      Heating voltage (VH): 5.0V plusmn 0.2V ACorDC
      Load resistance (RL): adjustable
      Heating resistance (RH): 31 Omega plusmn 3 Omega (room temperature)
      Heating power consumption (PH): le900mW
      Sensitive surface resistance (Rs): 2KOmega-20KOmega (in 100ppm NH3)
      Sensitivity (S): Rs (in the air) / Rs (100ppm NH3) ge 5
      Concentration slope (alpha): le 0.6 (R100ppm/R50ppmNH3)
      Temperature, humidity: 20 deg C plusmn 2 deg C; 65% plusmn 5% RH
      Standard test circuit: Vc: 5.0V plusmn 0.1V; VH: 5.0V plusmn 0.1V
      Warm-up time: no less than 48 hours
      Product dimensions: 32(L)*20(W)*22(H)
      Special reminder:
      After the sensor is powered on, it needs to be warmed up for about 20S to stabilize the measured data. It is normal for the sensor to heat up, because there is a heating wire inside, it will not be normal if the hand is hot.

      Packing list:

      Weight0.01 kg
      Dimensions3.2 × 2 × 2.2 cm

      Based on 0 reviews

      0.00 Overall
      Be the first to review “MQ 135 Air Quality Sensor Hazardous Gas Detector Module”

      Your email address will not be published. Required fields are marked *


      There are no reviews yet.

      Close My Cart
      Close Wishlist
      Recently Viewed Close